So your Android device has chosen to take a vacation and won’t boot properly? This situation isn’t fun. Troubleshooting it is even less fun. The problem could be related to an errant app, corrupted Android OS, or bad hardware. Here are the steps you can take if your Android won’t start.
For almost any issue where an Android device won’t start, I always suggest to pull the battery (if it’s removable) first and leave it out for about 20 seconds. Reinstall the battery and see if the issue persists. This step may not seem like it would work, but I know first-hand that it has helped numerous Android users.
If you have an SD card or any other items plugged into the device, unplug them. A bad SD card or headset can on rare occasions cause problems.
If your device won’t turn on at all, it may not have enough power. Attach the power adapter to the device and plug it in. Don’t use a connection to a computer or other device as the power you’d get is not sufficient to power most Android devices on right away. I’ve seen many users plug their device into the USB port on their computer and wonder why the device doesn’t turn on.
Another issue could be the actual battery. See if you can borrow a battery from a friend with a similar device and give that a try. If not, you may want to purchase a new or used battery and try it out. Return the battery to the store if it doesn’t help.
If you installed software that isn’t compatible with your device or have a virus, it usually causes the system to hang at a blank screen or continually force close items. In either case, you’ll want to find out how to start your device in Safe Mode. Safe Mode will start the device with only the base software required for the device. This will usually allow you to access the Android OS so that you can remove whatever app may be causing the issue. Most devices start in Safe Mode by pressing and holding the Menu or Volume Down button while you power on the device.
Factory Hard Reset
If you’ve tried all of the above steps and nothing seems to work, you may want to perform a factory hard reset on the device. Doing so will wipe all data from the memory of the device (usually not SD card data like music or photos). There are usually ways to perform a factory hard reset using a hardware button combination before the Android OS loads. Look in your manual or search for what the button combination is for your device. They are different for nearly every device.
If a none of the above steps work, there may be a hardware issue that you are unable to solve yourself. At that point, I would seek help from the manufacturer or the retail store that sold you the device.